/* roulang page: index */
:root{
      --bg:#f7f4ee;
      --surface:#ffffff;
      --surface-2:#fbf7ef;
      --text:#161b26;
      --muted:#667085;
      --weak:#98a2b3;
      --line:#e7dfd1;
      --dark:#0f172a;
      --dark-2:#182136;
      --gold:#d59a2e;
      --gold-2:#f4c76b;
      --green:#12b76a;
      --red:#f04438;
      --radius-sm:12px;
      --radius:20px;
      --radius-lg:30px;
      --shadow:0 18px 50px rgba(20, 26, 40, .10);
      --shadow-soft:0 10px 28px rgba(20, 26, 40, .08);
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:Inter,"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 12% 4%, rgba(213,154,46,.16), transparent 24%),
        radial-gradient(circle at 88% 16%, rgba(15,23,42,.09), transparent 28%),
        var(--bg);
      line-height:1.72;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    ::selection{background:rgba(213,154,46,.28)}
    .site-container{width:min(var(--container), calc(100% - 40px)); margin-inline:auto}
    .skip-link{position:absolute;left:-999px;top:12px;background:#fff;color:#111827;padding:10px 14px;border-radius:10px;z-index:1000}
    .skip-link:focus{left:16px;outline:3px solid var(--gold)}
    .topbar{
      position:sticky;top:0;z-index:80;
      background:linear-gradient(180deg, rgba(15,23,42,.98), rgba(17,24,39,.96));
      border-bottom:1px solid rgba(255,255,255,.08);
      box-shadow:0 12px 28px rgba(15,23,42,.18);
      backdrop-filter:blur(16px);
    }
    .nav-wrap{height:74px;display:flex;align-items:center;justify-content:space-between;gap:18px}
    .brand{
      display:flex;align-items:center;gap:12px;min-width:0;
      color:#fff;font-weight:900;letter-spacing:-.02em;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:14px;
      display:grid;place-items:center;
      color:#201300;
      background:linear-gradient(135deg,var(--gold-2),var(--gold));
      box-shadow:0 10px 30px rgba(213,154,46,.32);
      flex:0 0 auto;
    }
    .brand-text{font-size:18px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .desktop-nav{display:flex;align-items:center;gap:10px}
    .nav-link{
      color:rgba(255,255,255,.78);
      font-size:15px;font-weight:700;
      padding:11px 14px;border-radius:999px;
      transition:.22s ease;
    }
    .nav-link:hover,.nav-link:focus{color:#fff;background:rgba(255,255,255,.08);outline:none}
    .nav-link.active{color:#201300;background:linear-gradient(135deg,var(--gold-2),var(--gold))}
    .nav-actions{display:flex;align-items:center;gap:12px}
    .mini-search{
      display:flex;align-items:center;gap:8px;
      width:220px;height:42px;padding:0 13px;border-radius:999px;
      background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.10);
      color:rgba(255,255,255,.72);
    }
    .mini-search input{width:100%;border:0;outline:0;background:transparent;color:#fff;font-size:14px}
    .mini-search input::placeholder{color:rgba(255,255,255,.48)}
    .nav-cta,.btn{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      min-height:46px;padding:0 18px;border-radius:999px;
      font-weight:900;border:1px solid transparent;
      transition:transform .22s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease;
      cursor:pointer;white-space:nowrap;
    }
    .nav-cta{background:linear-gradient(135deg,var(--gold-2),var(--gold));color:#201300;box-shadow:0 14px 28px rgba(213,154,46,.22)}
    .nav-cta:hover,.btn:hover{transform:translateY(-2px)}
    .nav-cta:focus,.btn:focus,input:focus,textarea:focus{outline:3px solid rgba(244,199,107,.42);outline-offset:2px}
    .menu-btn{
      display:none;width:44px;height:44px;border-radius:14px;
      border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.07);
      color:#fff;align-items:center;justify-content:center;
    }
    .mobile-panel{
      display:none;padding:0 0 18px;border-top:1px solid rgba(255,255,255,.08);
    }
    .mobile-panel.open{display:block}
    .mobile-panel a{display:flex;padding:13px 4px;color:#fff;font-weight:800}
    .section{padding:86px 0}
    .section-tight{padding:58px 0}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      color:#8a5b0a;background:#fff4dc;border:1px solid #f3d79a;
      padding:7px 12px;border-radius:999px;font-size:13px;font-weight:900;
    }
    .section-title{font-size:clamp(28px,3.1vw,44px);line-height:1.18;font-weight:950;letter-spacing:-.04em;margin:16px 0 14px}
    .section-lead{max-width:760px;color:var(--muted);font-size:17px;margin:0}
    .hero{
      padding:52px 0 34px;
      background:
        linear-gradient(120deg, rgba(15,23,42,.98), rgba(25,34,55,.96) 52%, rgba(61,43,14,.95)),
        radial-gradient(circle at 72% 20%, rgba(244,199,107,.23), transparent 30%);
      color:#fff;
      overflow:hidden;
      position:relative;
    }
    .hero:before{
      content:"";position:absolute;inset:0;
      background-image:linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
      background-size:42px 42px;mask-image:linear-gradient(180deg,#000,transparent 86%);
      pointer-events:none;
    }
    .hero-inner{position:relative}
    .hero-banner{
      border:1px solid rgba(255,255,255,.12);
      border-radius:34px;
      background:linear-gradient(135deg, rgba(255,255,255,.10), rgba(255,255,255,.04));
      box-shadow:0 28px 90px rgba(0,0,0,.24);
      overflow:hidden;
    }
    .hero-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:0}
    .hero-copy{padding:54px}
    h1{font-size:clamp(34px,5.3vw,66px);line-height:1.05;font-weight:950;letter-spacing:-.06em;margin:18px 0 20px;max-width:850px}
    .hero-copy p{font-size:18px;color:rgba(255,255,255,.78);max-width:760px;margin:0 0 24px}
    .hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:28px 0}
    .btn-primary{background:linear-gradient(135deg,var(--gold-2),var(--gold));color:#201300;box-shadow:0 16px 36px rgba(213,154,46,.28)}
    .btn-secondary{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.18);color:#fff}
    .btn-secondary:hover{background:rgba(255,255,255,.16)}
    .hero-stats{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
    .stat-pill{
      padding:12px 14px;border-radius:16px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.10);
      min-width:150px;
    }
    .stat-pill strong{display:block;font-size:22px;line-height:1;color:#fff}
    .stat-pill span{display:block;color:rgba(255,255,255,.62);font-size:13px;margin-top:6px}
    .group-panel{
      padding:28px;
      background:linear-gradient(180deg, rgba(255,255,255,.98), rgba(255,250,241,.96));
      color:var(--text);
      min-height:100%;
      display:flex;flex-direction:column;gap:18px;
    }
    .progress-card,.tier-card,.support-wall{
      background:#fff;border:1px solid rgba(231,223,209,.92);
      border-radius:24px;padding:20px;box-shadow:var(--shadow-soft);
    }
    .progress-head{display:flex;justify-content:space-between;gap:14px;align-items:flex-start;margin-bottom:14px}
    .progress-head strong{font-size:18px}
    .progress-head span{color:var(--muted);font-size:13px}
    .progress-track{height:12px;background:#f0e8da;border-radius:999px;overflow:hidden}
    .progress-fill{height:100%;width:76%;background:linear-gradient(90deg,var(--gold),var(--green));border-radius:999px}
    .tier-list{display:grid;gap:10px;margin-top:12px}
    .tier{
      display:flex;align-items:center;justify-content:space-between;gap:12px;
      padding:12px;border-radius:16px;background:#fbf7ef;border:1px solid #eee0c6;
    }
    .tier b{font-size:14px}.tier small{color:var(--muted)}
    .avatar-row{display:flex;align-items:center;margin-top:14px}
    .avatar{
      width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
      background:linear-gradient(135deg,#172033,#344054);color:#fff;
      border:2px solid #fff;font-size:12px;font-weight:900;margin-left:-8px;
    }
    .avatar:first-child{margin-left:0}
    .card{
      background:rgba(255,255,255,.86);
      border:1px solid rgba(231,223,209,.92);
      border-radius:var(--radius);
      box-shadow:var(--shadow-soft);
      transition:transform .24s ease, box-shadow .24s ease, border-color .24s ease;
    }
    .card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#e5c27e}
    .story-layout{display:grid;grid-template-columns:.92fr 1.08fr;gap:34px;align-items:stretch}
    .story-panel{padding:34px;background:var(--dark);color:#fff;border-radius:30px;position:relative;overflow:hidden}
    .story-panel:after{content:"";position:absolute;right:-60px;bottom:-80px;width:220px;height:220px;border-radius:50%;background:rgba(213,154,46,.20)}
    .story-panel p{color:rgba(255,255,255,.74);margin:0;font-size:17px}
    .story-notes{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .note{padding:22px;border-radius:22px;background:#fff;border:1px solid var(--line)}
    .note .num{font-size:28px;font-weight:950;color:#a66a0e}
    .note p{color:var(--muted);margin:6px 0 0}
    .featured-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px;margin-top:32px}
    .feature-large{padding:30px;min-height:340px;background:linear-gradient(135deg,#fff,#fff8eb)}
    .feature-stack{display:grid;gap:18px}
    .tag{display:inline-flex;align-items:center;border:1px solid #efd6a3;background:#fff7e8;color:#8a5b0a;padding:6px 10px;border-radius:999px;font-size:12px;font-weight:900}
    .feature-large h3,.mini-feature h3{font-size:24px;line-height:1.25;margin:18px 0 12px;font-weight:950}
    .mini-feature{padding:24px}
    .check-list{display:grid;gap:12px;margin:20px 0 0;padding:0;list-style:none}
    .check-list li{display:flex;gap:10px;color:var(--muted)}
    .check-list li:before{content:"✓";width:22px;height:22px;flex:0 0 auto;border-radius:50%;display:grid;place-items:center;background:#e9f9f1;color:#079455;font-weight:900;font-size:13px;margin-top:2px}
    .assurance{
      background:linear-gradient(180deg,#fff,#fbf7ef);
      border-top:1px solid var(--line);
      border-bottom:1px solid var(--line);
    }
    .badge-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:28px}
    .assurance-badge{padding:22px;border-radius:24px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-soft)}
    .badge-icon{width:44px;height:44px;border-radius:16px;display:grid;place-items:center;background:#fff1d4;color:#9a620b;font-size:20px;margin-bottom:14px}
    .assurance-badge h3{font-weight:950;font-size:18px;margin:0 0 8px}.assurance-badge p{margin:0;color:var(--muted);font-size:15px}
    .timeline-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:34px;align-items:start}
    .timeline{position:relative;display:grid;gap:16px}
    .timeline:before{content:"";position:absolute;left:22px;top:8px;bottom:8px;width:2px;background:#ead8b8}
    .time-item{position:relative;padding:18px 20px 18px 62px;border-radius:22px;background:#fff;border:1px solid var(--line)}
    .dot{position:absolute;left:12px;top:22px;width:22px;height:22px;border-radius:50%;background:var(--gold);border:5px solid #fff;box-shadow:0 0 0 1px #ead8b8}
    .time-item h3{margin:0 0 6px;font-size:18px;font-weight:950}.time-item p{margin:0;color:var(--muted)}
    .ranking-card{padding:24px}
    .rank-list{display:grid;gap:10px;margin-top:18px}
    .rank-row{
      display:grid;grid-template-columns:40px 1fr auto;gap:12px;align-items:center;
      padding:13px;border-radius:16px;background:#fbf7ef;border:1px solid #f0e5d2;
    }
    .rank-no{width:30px;height:30px;border-radius:10px;display:grid;place-items:center;background:#111827;color:#fff;font-weight:950}
    .rank-row:first-child .rank-no{background:linear-gradient(135deg,var(--gold-2),var(--gold));color:#211300}
    .rank-title{font-weight:900}.rank-meta{font-size:13px;color:var(--muted)}
    .trend{font-size:13px;font-weight:950;color:#079455}
    .bubble-zone{background:#111827;color:#fff;position:relative;overflow:hidden}
    .bubble-zone:before{content:"";position:absolute;inset:auto -70px -120px auto;width:300px;height:300px;border-radius:50%;background:rgba(213,154,46,.18)}
    .bubble-grid{position:relative;display:grid;grid-template-columns:1fr 1fr 1fr;gap:18px;margin-top:30px}
    .bubble{padding:24px;border-radius:26px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12)}
    .bubble p{margin:0;color:rgba(255,255,255,.78)}
    .bubble strong{display:block;margin-top:16px;color:#fff}
    .bubble span{display:block;color:rgba(255,255,255,.52);font-size:13px}
    .news-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;margin-top:30px}
    .news-list{display:grid;gap:12px}
    .news-item{
      display:grid;grid-template-columns:96px 1fr auto;gap:16px;align-items:center;
      padding:18px;border-radius:22px;background:#fff;border:1px solid var(--line);
      transition:.22s ease;
    }
    .news-item:hover{transform:translateX(4px);border-color:#e5c27e;box-shadow:var(--shadow-soft)}
    .datebox{font-weight:950;color:#9a620b;background:#fff4dc;border-radius:14px;padding:10px;text-align:center}
    .news-item a{font-weight:950;font-size:18px}
    .news-item p{margin:4px 0 0;color:var(--muted);font-size:14px}
    .arrow{color:#a66a0e;font-weight:950}
    .recommend{padding:26px;background:linear-gradient(135deg,#111827,#1f2937);color:#fff;border-radius:28px;position:sticky;top:96px}
    .recommend p{color:rgba(255,255,255,.70)}
    .recommend ul{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:12px}
    .recommend li{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-top:1px solid rgba(255,255,255,.10)}
    .subscribe-box{
      display:grid;grid-template-columns:.9fr 1.1fr;gap:22px;
      border-radius:34px;padding:34px;
      background:linear-gradient(135deg,#fff,#fff8eb);
      border:1px solid #ead8b8;box-shadow:var(--shadow);
    }
    .form-card{background:#fff;border:1px solid var(--line);border-radius:26px;padding:24px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:grid;gap:8px}
    .field.full{grid-column:1/-1}
    .field label{font-weight:900;font-size:14px}
    .field input,.field textarea{
      width:100%;border:1px solid #ddd2c0;background:#fbfaf7;border-radius:16px;
      padding:13px 14px;color:var(--text);transition:.22s ease;
    }
    .field input:hover,.field textarea:hover{border-color:#cfa861}
    .field textarea{min-height:96px;resize:vertical}
    .privacy{font-size:13px;color:var(--muted);margin:12px 0 0}
    .faq-list{display:grid;gap:12px;margin-top:24px}
    .faq-item{border:1px solid var(--line);border-radius:20px;background:#fff;overflow:hidden}
    .faq-q{width:100%;display:flex;justify-content:space-between;gap:16px;padding:18px 20px;background:#fff;border:0;text-align:left;font-weight:950;cursor:pointer;color:var(--text)}
    .faq-q:hover{background:#fff8eb}
    .faq-a{display:none;padding:0 20px 18px;color:var(--muted)}
    .faq-item.open .faq-a{display:block}
    .footer{background:#0b1220;color:#fff;padding:48px 0 28px;border-top:1px solid rgba(255,255,255,.08)}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:28px;align-items:start}
    .footer-brand{display:flex;align-items:center;gap:12px;font-weight:950;font-size:18px}
    .footer p{color:rgba(255,255,255,.62);margin:14px 0 0;max-width:640px}
    .footer-links{display:flex;gap:12px;justify-content:flex-end;flex-wrap:wrap}
    .footer-links a{color:rgba(255,255,255,.72);padding:8px 10px;border-radius:10px}
    .footer-links a:hover{color:#fff;background:rgba(255,255,255,.08)}
    .copyright{margin-top:28px;padding-top:22px;border-top:1px solid rgba(255,255,255,.10);font-size:13px;color:rgba(255,255,255,.48)}
    @media (max-width:1024px){
      .mini-search{display:none}
      .hero-grid,.story-layout,.timeline-wrap,.news-layout,.subscribe-box{grid-template-columns:1fr}
      .hero-copy{padding:42px}
      .badge-grid{grid-template-columns:repeat(2,1fr)}
      .featured-grid{grid-template-columns:1fr}
      .recommend{position:relative;top:auto}
    }
    @media (max-width:768px){
      .site-container{width:min(100% - 28px, var(--container))}
      .desktop-nav,.nav-actions .nav-cta{display:none}
      .menu-btn{display:flex}
      .nav-wrap{height:66px}
      .brand-text{font-size:16px;max-width:230px}
      .section{padding:64px 0}
      .hero{padding:30px 0 24px}
      .hero-copy{padding:28px}
      .group-panel{padding:18px}
      h1{font-size:38px}
      .hero-copy p{font-size:16px}
      .stat-pill{min-width:calc(50% - 6px)}
      .story-notes,.badge-grid,.bubble-grid,.form-grid{grid-template-columns:1fr}
      .news-item{grid-template-columns:1fr;gap:10px}
      .arrow{display:none}
      .footer-grid{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
    }
    @media (max-width:520px){
      .brand-mark{width:38px;height:38px;border-radius:12px}
      .brand-text{max-width:190px}
      .hero-actions .btn{width:100%}
      .stat-pill{width:100%;min-width:0}
      .hero-banner{border-radius:24px}
      .section-title{font-size:30px}
      .subscribe-box{padding:22px;border-radius:26px}
      .rank-row{grid-template-columns:34px 1fr}
      .trend{grid-column:2}
    }